Storm-door



No. 617,309. Patented Jan. 3, I899. 0. COBB.

STORM DOOR.

(Application filed Jan. '31, 1898.(

(No Model.)

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NITED STATES OSCAR COBB, OF CHICAGO, ILLINOIS.

STORM-DOOR.

SPECIFICATION forming part of Letters Patent No. 617,309, dated January3, 1899.

Application filed January 31, 1898. Serial No. 668,575. (No model.)

To all whom it may concern.-

Be it known that I, OSCAR COBB, of Ohicago, in the State of Illinois,have invented certain new and useful Improvements in Storm-Doors, ofwhich the following is a specification. I

This invention relates to storm-doors adapted to keep a passage-wayconstantly closed to drafts of air, while permitting persons to passthrough; and the object of the improvements is to provide a reversing oroscillating door in connection with an arc side of the casing and withhinged flaps or flies adapted to close with the casing just before orsimultaneously with the opening of the door. The invention comprises anoscillating door arranged in connection with two hinged flaps havingspring connection therewith, so that the swinging of the door in eitherdirection shall cause one of the flaps to follow after the door andclose the opening behind the door before the door passes by the oppositeside of the arc casing to open the way before the person, the springconnection with one flap being expanded, while that with the othercollapses or is compressed.

The accompanying drawings illustrate the invention.

Figure 1 is a sectional plan view showing the hinged flaps adapted to asingle door designed to swing in either direction for passages inopposite directions. Fig. 2 is a similar view showing the hinged flapsin connection with two doors, each arranged for passage in onedirection, as indicated by the arrows.

In the drawings, A designates the wall or partition having the openingfor a passageway.

B designates the door, 0 the hinged flaps, and D the springs connectingthe flaps with the door.

E is the are side of the casing.

In the case of a single door it is hinged or pivoted at h to the plainor straight side of the door-case, so as to swing in eitherdirection,and preferably by a double-acting springhinge designed to keepthe door normally in the center of the arc, and the flaps O are hingedat b to the casing on opposite sides of the wall or partition, so thatthey may be turned out at right angles thereto. When the door isconnected with both flaps, as shown at Fig. 1, the springs D, if made ofcoiled wire, should be jointed in the middle, as shown at d, andpivotally connected with the door and flap so as to fall and hang downbetween the flap and door when these parts are brought close together,or a rubber cord may be used instead of a coiled-wire spring.

In the case of double doors, as illustrated in Fig. 2, the doors andflaps are hinged to a central post or standard F in the manner beforedescribed, and stops f are provided to limit the backward movementof thefiaps,and only a single spring D is employed, connecting each of theflaps with the one of the doors with which it is designed to cooperate.The flaps are slightly wider than the doors and cannot be turned withinthe arc casing.

In operation the pushing or turning of the door B from its normalposition out of the are side of the casing to open the door pulls theflap after it until it strikes the outer edge of the arc casing, asshown at 6, after which the spring D permits the door to be furtherpushed, so as to open the way for one passing through, as appears by theposition of the doors and flaps represented in the drawings by dottedlines.

What I claim is 1. The combination with a door-casing having one sidemade in the form of an arc, of a door pivoted to that side of the casingwhich is opposite to the are so as to swing through the arc and open thepassage-way in either direction, flaps adapted to cover the passagewayon either side and oppositely hinged to the same side of the casing asthe door and springs connecting the flaps with the door as specified.

2. The combination with a door-casing having one side made in the formofian arc, of a door pivoted to that side of the casing which isopposite to the arc so as to fill the opening and swing out of the arcin one direction for opening the passage, a flap adapted to cover

